I called Denis after water started to come through my ceiling, and I couldn’t establish where this was coming from. Denis turned up within 2 hours, and very quickly and efficiently identified that my immersion tank was the cause of the leak. The tank was rotting and needed replacing. He replaced the tank the next day, and therefore the nightmare of not having any water was resolved. Denis was very professional, he kept me up to date with the issues and options to fix the problem at every stage. I would definitely use Denis in the future and would recommend him to my family and friends.